relax SVN archive

Added a print out for the loading of simulations.

Limited the print out from __set_diff_tensor() to simply 'value' records.

Bug fix for the __load_model_free_data() method.

The setup of the simulation data was broken.

Bug fix for return_conversion_factor(), the spin container only needs to be given for the Rex param.

Bug fix for the get_data_names() method.

The sim_names flag is now properly used to return just a single object name.

Updates to get_data_names() including the addition of the sim_names keyword arg.

Updated data_names() to provide the error and simulation object names.

error_names and sim_names are now set to True in the call to data_names().

Bug fix for __load_model_free_data(), parameter errors were not being placed back into relax.

Bug fix for the reading of relax 1.2 results files.

The 'heteronucleus' object is not created for 'error' and 'sim' data types.